Vapor-burner



Modem J. E. DONOVAN. Vapoi' B urner.

Patented Dec. 21,1880.

N.FEI'ERS, PNOTO-LITHOGRAFHER. WASHINGTQNQU ci UNTTED STATES PATENTOEETQE.

JOHN E. DONOVAN, OF CINCINNATI, OHIO.

VAPOR-BU RN ER.

SPECIFICATION forming part of Letters Patent No. 235,673, den edDecember 21, 1880.

Application filed July 19,1880. (ModeL) To all whom it may concern:

Be it known that l, JOHN E. DONOVAN, of Cincinnati, in the county ofHamilton,and in the State of Ohio, have invented certain new and usefulImprovements in Vapor-Burners; and I do hereby declare that thefollowing is a full, clear, and exact description thereof, referencebeing bad to the accompanying drawings, making a part of thisspecification, in which Figure 1 is a perspective view of my apparatusseparate from its supporting attachments. Fig. 2 is a centrallongitudinal section of the same, and Fig. 3 is a section of thereservoir upon line a: x of Fig. 2.

Letters of like name and kind refer to like parts in each of thefigures.

This invention relates to the smaller and more simple devices forvaporizing and burning inflammable liquids, and its object is toequalize the pressure within such apparatus, so as to preventback-pressure at the vaporizing-point, and so as to aid the flow bypressure upon the liquid within its reservoir when the unaided action ofgravity upon the liquid becomes insufficient, without multiplying parts.

To this end my invention consists, principally, in the combination ofagenerating-tube entering the body of the burner proper from the front,and a simple system of equalizingtubes connecting the rear end of saidburner with the space above the liquid in the reservoir, so as toprevent back-pressure, as aforesaid, the lower of said equalizing-tubesserving also to inciose the stem of a needle-valve, for opening andclosing the burner in the most approved manner.

My invention consists, further, in a regulating-valve interposed betweensaid generating-tube and a supply-tube, in combination with the saidsupply-tube, generating-tube, burner, equalizing-tubes, and reservoir,for causing a pressure of vapor at will on the liquid within thereservoir to increase its flow.

It consists, finally, in a simple and compact apparatus composed of theparts aforesaid, constructed, arranged, and operating as hereinafter setforth.

In the annexed drawings, A represents a reservoir for containing theliquid to be vaporized, the upper end of which reservoir is preferablyinclosed by means of a screw-cap, a, beneath which is placed an elasticpackinggasket, B.

From the lower end of the reservoir A a pipe, 0, extends to and isconnected with a valvebox, D, that at one end has a packed opening forthe reception of a threaded valve-stem, d, the pointed end of whichlatter impinges upon and corresponds to a valve-seat, d, that isprovided within the opposite end of said valve-box, the arrangementbeing such as to enable the openin in and through said valveseat to. bepartially or entirely closedby the rotation of. said valve-stem.

Secured to the valve-closed end of the box D is a tube, E, which fromthence extends horizontally outward a certain distance, and thence in acurve downward and rearward, and at its rear end is connected with thelower side of a burner, F, which burner has its orifice f arranged tothrow a flame horizontally against the said curved portion of said tubeE.

From the rear end of the burner F a tube, G, extends rearward to a pointupon a line with the valve-box D, and at its rear end is provided with apacked opening, through which passes a threaded rod, II, that extendsinto said burner and has a pointed end, h, which, by the rotation ofsaid rod, may be caused to partly or entirely close the orifice f.

From a point near the reservoir A a tube, I, extends from the tube G toand communicates with the upper portion of said reservoir.

The reservoir A is intended to contain a supply of fluid forvaporization, which fluid is admitted to the tube E by means of thevalve d, and from thence passes forward and downward until it comes intocontact with the curved portion of said tube, which, being heated by theflame from the burner-F, causes said fluid to become vaporized, and insuch state to pass to and out of said burner, the surplus vapor beingfreely admitted to said reservoir through the tubes G and I. By means ofthe arrangement shown the pressure within the tube E and the reservoir Ais equalized, and no tendency exists to a back-pressure within saidtube, so that the downward flow of the liquid to be vaporized is notinterfered with in the slightest degree.

In order that the flow of the liquid for vaporization may be constant,that portion ofthe tube E between its curved part and the valve-boxD istilled with sand 0, and the same held in place by means of wire thimbles0, one of which is placed at each end of said filling.

In case that but slight elevation of the reservoir A above the burner Fis practicable, the flow of liquid to the latter may be caused bypressure within said reservoir, to accomplish which it is only necessarythat more liquid should be vaporized than is necessary for supplyingsaid burner. This is accomplished by increasing the supply of liquid tothe generating-tube by means of the valve d d, and the same expedientmay be resorted to to advantage as the level of the liquid in thereservoir falls during the continued operation of the apparatus, inorder to compensate for loss of weight.

Having thus fully set forth the nature and merits of my invention, whatI claim as new 1s 1. In an apparatus for vaporizing inflammable liquids,the combination, with a suitable burner, of a generating-tube connectedwith the body of said burner from in front thereof, and a system ofequalizing-tubes connecting the rear end of said burner with the upperpart of the reservoir, the lower one of said equalizing-tubes serving,additionally, to inclose the stem of a needle-valve, substantially asherein specified.

2. In an apparatus for vaporizing inflammable liquids, the combinationof a reservoir, A, supply-tube (J, a valve-box, I), with its valve 61 d,a generating-tube, E, a burner, F f, arranged to throw a flame againstsaid generating-tube, to which it is connected, and a system ofequalizing-tubes, G I, connecting the rear end of said burner with theupper part of the reservoir, substantially as herein described, for thepurpose set forth.

3. The combination of the reservoir A, tubes O E G I, burner Ff,valve-box I), and valves 61 d and H h, constructed and arranged asshown, for vaporizing in flammable liquids and equalizing the pressurewithin the apparatus, in the manner herein set forth.

In testimony that I claim the foregoing I have hereunto set my hand this3d day of July, 1880.

JOHN E. DONOVAN.

Witnesses SAM O. TAIUM, J12, SAML. E. HILLEs.

